liberation/redis-limpyd — pull request #27 by twidi (2012-07-03 21:01:28+00:00)
Title: Add a "exists" method on each field

Add a "exists" method on each field:

It can be useful to test if a field is already set (stored in Redis).
It's done with calls to exists/hexists method in Redis

Enhance the exists method of PKFields:

Previously the value to check for existence was mandatory.
Now, if not set, the value of the current field is used.